Model: Pad Steam - Continuous Dyeing And Development For Open-Width
Fabrics


The PAD STEAM dyeing line consists of a dye padder, a modular steamer and
successive washing and soaping units. The fruit of a painstaking design this
machine guarantees a vast range of treatments on various articles. The
innovation that has always characterized our machines is well represented by a
machine with high technology and that meets the current requirements for
versatility and operating reliability.

The new market demands require companies to satisfy high quality standards based
on efficient production management. As such the need to use modern technology
arises in order to increase product quality and, at the same time, to reduce
costs and working times.



Features:

Dye padder:

Impregnation is obtained by running the fabric through the dye in the dye padder
vat and then squeezing it through two rubber-coated rollers to remove the excess
dye liquor.

The impregnation vat is built to obtain fast wetting-out in a small volume of
liquor, thus reducing any variation in concentration to a minimum.



A liquor re-circulating and automatic feed system keeps the liquor volume
constant, thus avoiding areas with a temperature or concentration difference.
Fabric expanders at the fabric take-in stop creases forming, which is often the
cause of dyeing faults in the finished article.



Short vertical double-roller steaming:

The dye applied when using the dye padder is not strongly bonded to the fabric.
To obtain fixation and a good end result a fixing treatment is required to allow
the dye to penetrate into the fibre and bond with it. This will give the dyeing
result the best colour yield and fastness.



The steamer is built with a varying number of steaming chambers (modules) and it
can have a single or double fabric path. colour development takes place in
saturated steam at atmospheric pressure. The water bed system generates steam
with the correct moisture content. This ensures that no air is present in the
steaming chamber throughout the process.



Good dye steaming must satisfy certain fundamental conditions:

• the fabric take-in and delivery mechanisms are manufactured so that no steam
can escape;

• the indirect heating equipment ensures that the dry temperature is slightly
above the damp temperature to avoid the steam overheating excessively, which
would cause the fabric to lose moisture;

• the thermal insulation in the steamer reduces heat loss to a minimum and
ensures condensation formation inside the machine;

• the single or double fabric path prevents creases forming, the cause of
dyeing faults. The top guide rollers are powered;

• the large inspection doors give easy access to the machine for cleaning,
repairs and maintenance work;

• steam feed and circulation is uniform inside the steamer.